Mason jar lid



FIG. 1 is a top front perspective view of a mason jar lid showing our new design;

FIG. 2 is a bottom rear perspective view thereof;

FIG. 3 is a bottom front perspective view thereof;

FIG. 4 is a front elevation view thereof;

FIG. 5 is a rear elevation view thereof;

FIG. 6 is a right side elevation view thereof;

FIG. 7 is a left side elevation view thereof;

FIG. 8 is a top plan view thereof; and,

FIG. 9 is a bottom plan view thereof. 

CLAIM The ornamental design for a mason jar lid, as shown and described. 